My Inquiry
My Account
Texas Instruments CD74AC175ME4
- Part No.:
- CD74AC175ME4
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
CD74AC175ME4.pdf
- Description:
- IC FF D-TYPE SNGL 4BIT 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,341
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
CD74AC175ME4 from Texas Instruments is a quadruple positive-edge-triggered D-type flip-flop with asynchronous clear, designed for synchronous data latching in digital logic systems. It features complementary Q and Q̅ outputs per stage, ±24mA output drive at 4.5–5.5V, 1.5V to 5.5V supply operation, and operates across –55°C to 125°C. It is used in buffer/register applications requiring rail-to-rail CMOS compatibility and noise-immune timing control.
For engineers reviewing the CD74AC175ME4 datasheet, CD74AC175ME4 pinout, CD74AC175ME4 application, or CD74AC175ME4 equivalent, key selection considerations include its 16-pin SOIC package, dual-rail output architecture, 114MHz max clock frequency at 5V, and SCR-latchup-resistant process - all critical for industrial register design and shift-register implementation.
Technical Context
The CD74AC175ME4 implements four independent D-type flip-flops sharing a common clock (CLK) and global asynchronous clear (CLR) input. Each stage latches data on the rising edge of CLK while maintaining separate D inputs and complementary Q/Q̅ outputs, enabling simultaneous storage and inversion without external inverters.
Its AC-series CMOS process delivers balanced propagation delays (tPLH/tPHL ≤12.2ns at 5V), 30% supply-voltage noise immunity, and ESD robustness (±2kV HBM). The device supports wide VCC range (1.5–5.5V), making it interoperable with 1.8V, 3.3V, and 5V logic families while maintaining fanout to 15 F-type loads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.5V to 5.5V - enables direct interface with 1.8V, 3.3V, and 5V logic domains without level-shifting. |
| Max Clock Frequency | 114MHz at VCC = 5V - supports high-speed register transfer in data-path and control logic. |
| Output Drive Current | ±24mA at VCC = 4.5–5.5V - drives up to 15 F-type loads or standard TTL inputs directly. |
| Propagation Delay | ≤12.2ns (tPLH/tPHL, VCC = 5V, CL = 50pF) - ensures tight timing margins in synchronous pipelines. |
| Operating Temperature | –55°C to +125°C - qualified for extended-temperature industrial and automotive under-hood use. |
| ESD Rating | ±2000V HBM - exceeds MIL-STD-883 requirement, reducing field failure risk in handling and assembly. |
| Power Dissipation Cap. | 55pF (Cpd, VCC = 5V) - enables accurate dynamic power estimation in high-density logic designs. |
Pinout & Package
CD74AC175ME4 is housed in a 16-pin SOIC (D) package measuring 9.9mm × 6mm (including pins), with body dimensions of 9.9mm × 3.9mm. The package is RoHS-compliant, lead-finished with NiPdAu, and rated MSL Level-1 (unlimited reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | CLR | Asynchronous active-low clear - resets all four Q outputs to low independently of clock edge. |
| 2, 3, 6, 7, 10, 11, 14, 15 | Q / Q̅ | Complementary outputs per flip-flop - eliminates need for external inverters in toggle or differential bus applications. |
| 4, 5, 12, 13 | D | Data inputs - each feeds one flip-flop; no internal cross-coupling between stages. |
| 8 | GND | Ground reference - must be low-impedance; shared return for all four flip-flops. |
| 9 | CLK | Common positive-edge clock - synchronizes latching across all four stages simultaneously. |
| 16 | VCC | Power supply - bypassing with 0.1µF capacitor near pin is mandatory for stable high-speed operation. |
Key Features
| Feature | Design Value |
|---|---|
| Quadruple D-type with Clear | Four independent edge-triggered storage elements with shared asynchronous reset - simplifies multi-bit register control in compact layout. |
| Complementary Outputs | Each flip-flop provides both Q and Q̅ - enables direct connection to differential receivers or eliminates external inverters in feedback paths. |
| Balanced Propagation Delays | tPLH ≈ tPHL (≤12.2ns at 5V) - minimizes skew between true/complement outputs and supports precise timing in synchronous state machines. |
| SCR-Latchup Resistant Process | CMOS fabrication with latchup immunity - prevents destructive current runaway during transient overvoltage or hot-swap events. |
| Wide-Voltage Operation | 1.5V–5.5V supply range - allows single-device deployment across mixed-voltage systems without voltage translation. |
Applications
| Buffer/Storage Registers | Shift Registers |
|---|---|
|
Use Scenario: Holding parallel data from ADCs or microcontroller buses before serial transmission or processing. IC Role / Device Role / Timing Role: Synchronous data latch - captures and holds 4-bit words on CLK rising edge with simultaneous Q/Q̅ availability. Use Value: Eliminates need for discrete inverters or additional logic gates when both true and complement outputs are required for bus arbitration or differential signaling. |
Use Scenario: Constructing 4-bit serial-in/parallel-out (SIPO) or parallel-in/serial-out (PISO) shift registers. IC Role / Device Role / Timing Role: Cascadable storage element - Q output of stage N connects to D input of stage N+1; CLR enables full register reset. Use Value: Enables deterministic bit alignment and synchronized shifting across all four bits with single-clock edge control and no inter-stage skew. |
| Pattern Generators | Control Logic Sequencers |
|
Use Scenario: Generating fixed binary sequences (e.g., 0011, 1010) for test signal generation or LED animation timing. IC Role / Device Role / Timing Role: State-holding node - preloaded via D inputs and clocked to produce repeatable output patterns. Use Value: Complementary outputs allow direct driving of dual-phase logic or enable/disable complementary driver pairs without added components. |
Use Scenario: Implementing finite-state machine (FSM) control states in motor drivers or power-supply sequencers. IC Role / Device Role / Timing Role: Synchronous state register - stores current FSM state bits; CLR initializes to known safe state on power-up or fault. Use Value: Guaranteed metastability-free initialization via asynchronous CLR ensures deterministic startup behavior in safety-critical sequencing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar D-type flip-flop applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74AC175N | Same logic function and pinout, but in PDIP package (not SOIC); slightly higher RθJA (120°C/W vs. 106.6°C/W). | Preferred for through-hole prototyping or legacy board reuse; not suitable for surface-mount production. | Select SN74AC175N only if PDIP mounting is required; CD74AC175ME4 offers superior thermal performance and automated assembly compatibility. |
| CD74HC175M | Pin-compatible HC-series variant; lower drive (±4mA), slower max speed (25MHz at 5V), and narrower VCC range (2–6V). | Suitable for low-power, low-frequency applications where drive strength and speed are not critical. | Choose CD74HC175M for battery-powered systems prioritizing quiescent current (<4µA); CD74AC175ME4 is optimal for speed/power balance in industrial control. |
Compared with SN74AC175N and CD74HC175M, CD74AC175ME4 delivers the highest combination of speed (114MHz), drive strength (±24mA), and temperature range (–55°C to 125°C) in an industry-standard SOIC package - making it the preferred choice for high-reliability, high-performance register applications.
Availability
CD74AC175ME4 is available at Aetrix Electronics and suitable for industrial control systems, automotive body electronics, and test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for CD74AC175ME4 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and logic solutions, with decades of experience in high-reliability logic IC development.
The CD74AC175ME4 belongs to TI's Advanced CMOS (AC) logic family, engineered for high-speed, low-power operation across wide supply voltages - targeting industrial automation, instrumentation, and communications infrastructure where robust timing and noise immunity are essential.
FAQ
What is the maximum clock frequency supported by CD74AC175ME4?
The CD74AC175ME4 supports a maximum clock frequency of 114MHz when operated at VCC = 5V ± 0.5V and TA = –55°C to 125°C. At 3.3V, the max frequency drops to 81MHz, and at 1.5V it is 114MHz - verified per TI's switching characteristics tables in the official datasheet. This makes CD74AC175ME4 suitable for high-speed register applications in mixed-voltage systems.
Does CD74AC175ME4 have true complementary outputs for each flip-flop?
Yes, CD74AC175ME4 provides dedicated Q and Q̅ outputs for each of its four D-type flip-flops (pins 2/3, 6/7, 10/11, 14/15). These are internally generated complementary signals - not inverted externally - ensuring matched propagation delay and eliminating timing skew between true and complement paths in the CD74AC175ME4.
What is the recommended bypass capacitor for CD74AC175ME4?
Texas Instruments recommends a 0.1µF ceramic capacitor placed as close as possible to the VCC (pin 16) and GND (pin 8) pins of the CD74AC175ME4. For systems with multiple power domains or high-noise environments, paralleling a 1µF capacitor is advised. This ensures stable operation at high clock frequencies and prevents supply droop during output switching transients in the CD74AC175ME4.
Is CD74AC175ME4 compatible with 3.3V logic systems?
Yes, CD74AC175ME4 is fully compatible with 3.3V logic systems. Its recommended operating conditions specify VCC = 3.3V ± 0.3V, with guaranteed VIH = 2.1V and VIL = 0.9V, providing 0.4V noise margin. Output VOH/VOL levels meet 3.3V LVTTL thresholds, and the CD74AC175ME4 maintains 71–81MHz max clock frequency at this voltage - ideal for modern mixed-signal interfaces.
How does the asynchronous clear (CLR) function in CD74AC175ME4?
The CLR input (pin 1) is an active-low asynchronous reset that forces all four Q outputs low regardless of clock state or timing. It overrides the clock edge and data inputs immediately upon assertion, with a minimum pulse width of 3.5ns at 5V. This allows deterministic initialization or emergency shutdown in the CD74AC175ME4 without waiting for a clock cycle.
CD74AC175ME4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74AC
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Function:
- Master Reset
- Type:
- D-Type
- Output Type:
- Complementary
- Number of Elements:
- 1
- Number of Bits per Element:
- 4
- Clock Frequency:
- 100 MHz
- Max Propagation Delay @ V, Max CL:
- 12.2ns @ 5V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 24mA, 24mA
- Voltage - Supply:
- 1.5V ~ 5.5V
- Current - Quiescent (Iq):
- 8 µA
- Input Capacitance:
- 10 pF
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
CD74AC175ME4 FAQ
1.How can I place an order for CD74AC175ME4 through Aetrix?
Please submit a Request for Quotation (RFQ) for CD74AC175ME4 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for CD74AC175ME4 reliable?
The price and inventory of CD74AC175ME4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CD74AC175ME4 is usually 5 days.
3.What payment methods are accepted for CD74AC175ME4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CD74AC175ME4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CD74AC175ME4?
CD74AC175ME4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CD74AC175ME4 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for CD74AC175ME4?
For technical support, including CD74AC175ME4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CD74AC175ME4 requirements.
6.How does Aetrix verify that CD74AC175ME4 is sourced from the original manufacturer or authorized distributors?
All CD74AC175ME4 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that CD74AC175ME4 meets industry standards.
7.What is the process for return or replacement of CD74AC175ME4?
All CD74AC175ME4 units undergo pre-shipment inspection (PSI). If there is an issue with CD74AC175ME4, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The CD74AC175ME4 part is unused and in its original packaging.
Return procedure for CD74AC175ME4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CD74AC175ME4 Tags
-
SN74HC74DR
Texas Instruments
-
SN74HC74PWR
Texas Instruments
-
74LVC1G74GT,115
Nexperia USA Inc.
-
SN74LVC2G74DCUR
Texas Instruments
-
CD4013BM96
Texas Instruments
-
SN74HCT273PWR
Texas Instruments
-
SN74LVC1G74DCUR
Texas Instruments
-
SN74HC574DWR
Texas Instruments
-
74LVC1G74DC,125
Nexperia USA Inc.
-
SN74HC273DWR
Texas Instruments
-
SN74HCT574DWR
Texas Instruments
-
SN74LVC1G74DCTR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
